The Approach External is identified by letter "X" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 09R2X
Replacement of Bi Ext Ear with Autol Sub, Open Approach
Replacement of Bi Ext Ear with Synth Sub, Open Approach
Replacement of Bi Ext Ear with Autol Sub, Extern Approach
Replacement of Bi Ext Ear with Nonaut Sub, Open Approach
Replacement of Bi Ext Ear with Synth Sub, Extern Approach
Replacement of Bi Ext Ear with Nonaut Sub, Extern Approach